BLOOD VESSEL LAB 4A SYSTEMIC ARTERIES Flashcards
What is the function of arteries?
arteries are responsible for carrying blood away from the heart to the capillaries
Where do gas and nutrient exchange occur?
gas and nutrient exchange in occur in the capillaries
What are the two primary circulatory routes within the body?
the two primary circulatory routes within the body are the systemic and pulmonary circulation system
What is the function of veins?
veins are responsible for carrying deoxygenated blood to the heart
Blood from the left ventricle is ejected into which vessel?
blood from the left ventricle is ejected into the ascending aorta
The right/ left coronary vessels branch off of which vessel?
the right/ left coronary vessels branch off of the ascending aorta
The ascending aorta curves superiorly to left and becomes what?
the ascending aorta curves superiorly to the left and becomes the aortic arch
Which three major arteries branch off the aortic arch?
the three major arteries that branch off of the aortic arch are the brachiocephalic trunk, left common carotid artery, and left subclavian artery
The brachiocephalic trunk divides into which vessels?
the brachiocephalic trunk divides into the right common carotid and right subclavian arteries
The common carotid arteries branch off to form which arteries?
the common carotid arteries branch off to form the internal/ external carotid arteries
What is the function of the internal carotid arteries?
the internal carotid arteries are responsible for supplying the structures within the skull with blood
Describe where the internal carotid arteries travel through in order to supply the brain with blood.
the internal carotid arteries travel through the neck and enter the skill through the carotid canal within each temporal body
Each internal carotid artery branches off to form what?
each internal carotid artery branches off to form an anterior cerebral artery and middle cerebral artery
What is the function of the anterior/ middle cerebral arteries?
the anterior/ middle cerebral arteries are responsible for supply blood to areas of the brain
Which areas of the brain do the anterior/ middle cerebral arteries supply blood to?
the anterior/ middle arteries supply blood to the orbits and ~80% of the cerebrum
What happens if you compress the internal carotid arteries near the mandible?
suppressing the internal carotids near the mandible can cause loss of consciousness
Describe where the carotid sinus is located.
the carotid sinus is located in the internal carotid just above the branch point
Describe where the external carotid arteries are located.
the external carotid arteries ascend along the lateral portion of the neck and cranium
What is the function of the external carotid arteries?
the external carotid arteries are responsible for supplying blood to most of external structures of the head and the orbits
Describe what would happen if the blood supplied to the brain was impeded for even just a few minutes.
since blood supply to the brain for just a few minutes can cause sever damage to brain tissue
What is another name for the cerebral arterial circle?
another name for the cerebral arterial circle is “the circle of willis”
Describe the structure and function of the cerebral arterial circle (circle of willis)?
the cerebral arterial circle is a ring of blood vessels formed by three anastomoses that supply oxygenated blood to brain tissue
The right subclavian artery becomes what artery?
the right subclavian becomes the axillary artery
The axillary artery becomes what artery?
the axillary artery becomes the brachial artery
